Powered bur and surgical power system

Abstract

The utility model relates to medical instrument technical field provides a power grinding head and surgical power system for operation. Power grinding head includes grinding head, sword pole and handle, the grinding head is located one end of sword pole, handle is located the other end of sword pole, the outside surface of handle is equipped with first ridge structure, the convex direction of first ridge structure corresponds with the direction of the working end of grinding head. The utility model provides the power grinding head for operation, to solve the defect that handle can not judge working end direction in prior art, through setting up first ridge structure on the outside surface of handle, and make its convex direction correspond with the working end direction of grinding head, this design provides intuitive direction indication for doctors, so that doctors can rapidly and accurately judge the orientation of grinding head working end only by touching handle.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a power grinding head and surgical power system for surgery. Background Technology

[0002] In the field of modern orthopedic surgery, powered burrs are extremely important surgical instruments, widely used in the grinding or milling of human bone tissue. Currently, most burrs on the market have a handle designed as a regular cylinder.

[0003] During certain bone repair surgeries on joints, the working end of the burr needs to be operated at a specific angle and direction. Failure to accurately identify the working end's orientation in a timely manner can lead to unnecessary damage to surrounding healthy tissues, thus affecting the surgical outcome and the patient's recovery process. However, due to the uniformity of the handle's shape, surgeons find it difficult to quickly and accurately determine the working end's orientation solely by its appearance, undoubtedly increasing the difficulty and uncertainty of the surgical procedure. Utility Model Content

[0004] The first aspect of this utility model provides a power grinding head for surgery, which solves the defect in the prior art that the handle cannot determine the direction of the working end. By setting a first ridge structure on the outer side of the handle and making its protrusion direction correspond to the direction of the working end of the grinding head, this design provides doctors with intuitive directional indication, so that doctors can quickly and accurately determine the orientation of the working end of the grinding head by simply touching the handle.

[0005] The second aspect of this utility model provides a surgical power system.

[0006] The present invention provides a power grinding head for surgery, comprising a grinding head, a shank, and a handle. The grinding head is disposed at one end of the shank, and the handle is disposed at the other end of the shank. The outer surface of the handle is provided with a first ridge structure, and the protrusion direction of the first ridge structure corresponds to the direction of the working end of the grinding head.

[0007] According to the present invention, the power grinding head for surgery includes one of an oscillating saw, a sheathed grinding drill bit, a grinding drill bit, a milling cutter, a ring saw, and a straight saw.

[0008] According to the power grinding head for surgery provided by this utility model, when the grinding head includes the oscillating saw, the protrusion direction of the first ridge structure is opposite to the direction of the working end of the oscillating saw;

[0009] When the grinding head includes the sheathed grinding drill bit, the protrusion direction of the first ridge structure is opposite to the direction of the working end of the sheathed grinding drill bit;

[0010] In the case where the grinding head includes the grinding drill bit, the protrusion direction of the first ridge structure is opposite to the direction of the working end of the grinding drill bit;

[0011] When the grinding head includes the milling cutter, the protrusion direction of the first ridge structure is the same as the direction of the working end of the milling cutter;

[0012] When the grinding head includes the ring saw, the protrusion direction of the first ridge structure is the same as the direction of the working end of the ring saw;

[0013] When the grinding head includes the straight saw, the protrusion direction of the first ridge structure is the same as the direction of the working end of the straight saw.

[0014] According to the present invention, in the case of the power grinding head for surgery, when the grinding head includes the grinding drill bit, the shank includes a first connecting part and a second connecting part that are connected to each other. The first connecting part and the second connecting part are arranged at an included angle to each other, and the opening of the included angle faces the same direction as the working end of the grinding drill bit.

[0015] The end of the first connecting part away from the second connecting part is connected to the tool holder, and the end of the second connecting part away from the first connecting part is connected to the drill bit.

[0016] According to the power grinding head for surgery provided by this utility model, the outer side of the handle is provided with at least one second ridge structure, and the second ridge structure and the first ridge structure are arranged parallel to each other along the circumference of the handle.

[0017] According to the power grinding head for surgery provided by this utility model, when two second ridge structures are provided, a first gripping portion is restricted between the two second ridge structures, and a second gripping portion is restricted between each second ridge structure and the first ridge structure, wherein the area of ​​the second gripping portion is larger than the area of ​​the first gripping portion.

[0018] According to the present invention, a power grinding head for surgery is provided, wherein the first grip portion is provided with anti-slip texture, and / or the second grip portion is provided with anti-slip texture.

[0019] According to the power grinding head for surgery provided by this utility model, multiple anti-slip patterns are provided, and the multiple anti-slip patterns are arranged parallel and spaced apart along the length direction of the handle.

[0020] According to the present invention, the power grinding head for surgery has a detachable connection between the shank and the handle.

[0021] The surgical power system provided by this utility model includes the power grinding head for surgery described in any of the preceding claims.

[0022] In the power grinding head provided by this utility model, the first ridge structure provided on the outer side of the handle has a protrusion direction that corresponds to the working end direction of the grinding head. This design provides doctors with intuitive directional guidance. Specifically, in the preoperative preparation stage, this allows doctors to quickly and accurately determine the orientation of the working end of the grinding head simply by touching the handle, without the need for additional tools or complex observation and judgment, saving surgical preparation time and improving the efficiency of the surgical procedure.

[0023] Secondly, during surgery, especially when the surgeon needs to frequently adjust the direction of the grinding head, this precise directional recognition capability ensures the continuity and accuracy of the surgeon's operation. For example, when performing fine grinding on complex bone structures, such as the handling of vertebrae in spinal surgery, the surgeon can quickly adjust the grinding head to the correct direction based on the first vertebral structure, avoiding damage to surrounding nerves, blood vessels, and other important tissues due to misjudgment, thereby ensuring the safety and effectiveness of the surgery.

[0024] In addition, the first ridge structure, as a special structure on the handle, changes the surface morphology of the handle to a certain extent, increasing the friction and contact points between the hand and the handle. When the doctor holds the handle, the hand can better fit on the surface with the first ridge structure, forming a relatively stable grip. This provides a certain structural basis for preventing the grinding head from slipping and slipping out of the hand during use, allowing the doctor to apply force more confidently and stably when operating the power grinding head, thus improving the controllability of the operation.

[0025] In addition, this structural feature helps doctors better control the transmission of torque when starting and stopping the burr head. In other words, because doctors can more accurately grasp the direction of the burr head, they can more rationally distribute the hand force to counteract the torque generated by the burr head during operation, which can reduce the accidental rotation of the handle due to excessive torque, thereby further improving the stability and safety of the entire surgical operation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an axial side view of a power grinding head for surgery provided in an embodiment of the present invention.

[0028] Figure 2This is a schematic diagram of the first structure of a power grinding head for surgery provided in this embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of a second structure of a power grinding head for surgery provided in an embodiment of this utility model.

[0030] Figure 4 This is a schematic diagram of the third structure of the power grinding head for surgery provided in this embodiment of the present invention.

[0031] Figure 5 This is a schematic diagram of the fourth structure of the power grinding head for surgery provided in this embodiment of the utility model.

[0032] Figure 6 This is a schematic diagram of the fifth structure of the power grinding head for surgery provided in this embodiment of the utility model.

[0033] Figure 7 This is a sixth structural schematic diagram of a power grinding head for surgery provided in this embodiment of the present invention.

[0034] Figure label:

[0035] 100: Grinding head; 110: Oscillating saw; 120: Sheathed grinding drill bit; 130: Grinding drill bit; 140: Milling cutter; 150: Ring saw; 160: Straight saw; 200: Tool shank; 210: First connecting part; 220: Second connecting part; 300: Tool handle; 310: First ridge structure; 320: Second ridge structure; 330: First grip part; 340: Second grip part; 350: Anti-slip texture. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0038] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] In the field of modern orthopedic surgery, the power burr is an extremely important surgical instrument, widely used in the process of grinding or milling human bone tissue. Currently, most of the burrs on the market have a handle designed as a regular cylinder.

[0041] During surgery, especially in complex and delicate procedures, surgeons need to precisely control the orientation of the burr head's working end to ensure that the bone tissue is treated in accordance with surgical requirements. However, from the perspective of identifying the orientation of the burr head's working end, the regular cylindrical handle lacks obvious indicative features. Therefore, it is difficult for surgeons to quickly and accurately determine the orientation of the burr head's working end solely by observing the appearance of the handle. This undoubtedly increases the difficulty and uncertainty of the surgical procedure. For example, in some bone tissue repair surgeries on joints, the burr head's working end needs to be operated at a specific angle and direction. If the orientation of the burr head's working end cannot be identified in a timely and accurate manner, it may lead to unnecessary damage to surrounding normal tissues, thereby affecting the surgical outcome and the patient's recovery process.

[0042] Furthermore, when the grinding head encounters bone tissue, due to the hardness and irregularity of the bone tissue, the grinding head will be subjected to a large reaction force. At this time, the regular cylindrical handle cannot effectively disperse and resist this torque, resulting in a large torque at the handle. Similarly, at the moment of high-speed start-up and stop, the inertia of the grinding head will also be converted into torque and act on the handle.

[0043] Excessive torque can lead to insufficient friction between the handle and the surgeon's hand to maintain a stable grip, easily causing slippage. Once slippage occurs, the position and direction of the working end of the grinding head will be out of control, which not only affects the precision of the surgery but may also cause serious harm to the patient. Moreover, severe slippage may even cause the grinding head to slip out of the surgeon's hand, which is an extremely dangerous situation in the surgical environment. This could cause unexpected trauma to the surgical area, prolong the operation time, increase the surgical risk, and pose a direct threat to the patient's life and health.

[0044] Figure 1 This is an axial side view of a power grinding head for surgery provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the first structure of a power grinding head for surgery provided in this embodiment of the present invention.

[0045] See Figure 1 and Figure 2 The first aspect of the present invention provides a power grinding head for surgery, which aims to solve at least one of the above-mentioned technical problems; hereafter, power grinding head is referred to as a power grinding head for surgery.

[0046] The power grinding head provided in this embodiment of the utility model includes a grinding head 100, a tool bar 200 and a tool holder 300. The grinding head 100 is disposed at one end of the tool bar 200 and the tool holder 300 is disposed at the other end of the tool bar 200. The outer side of the tool holder 300 is provided with a first ridge structure 310, and the protrusion direction of the first ridge structure 310 corresponds to the direction of the working end of the grinding head 100.

[0047] It is understood that in the power grinding head provided in this embodiment of the present invention, the first ridge structure 310 provided on the outer side of the handle 300 has a protrusion direction corresponding to the working end direction of the grinding head 100. This design provides doctors with intuitive directional guidance. Specifically, in the preoperative preparation stage, this allows doctors to quickly and accurately determine the orientation of the working end of the grinding head 100 simply by touching the handle 300, without the need for additional tools or complex observation and judgment, saving surgical preparation time and improving the efficiency of the surgical procedure.

[0048] Secondly, during surgery, especially when the surgeon needs to frequently adjust the direction of the burr head 100, this precise directional recognition capability ensures the continuity and accuracy of the surgeon's operation. For example, when performing fine grinding on complex bone structures, such as the handling of vertebrae in spinal surgery, the surgeon can quickly adjust the burr head 100 to the correct direction based on the first vertebral structure 310, avoiding damage to surrounding nerves, blood vessels, and other important tissues due to misjudgment of direction, thereby ensuring the safety and effectiveness of the surgery.

[0049] In addition, the first ridge structure 310, as a special structure on the handle 300, changes the surface morphology of the handle 300 to a certain extent, increasing the friction and contact points between the hand and the handle 300. When the doctor holds the handle 300, the hand can better fit on the surface with the first ridge structure 310, forming a relatively stable grip. This provides a certain structural basis for preventing the grinding head 100 from slipping and slipping out of the hand during use, enabling the doctor to apply force more confidently and stably when operating the power grinding head, thus improving the controllability of the operation.

[0050] In addition, this structural feature helps doctors better control the transmission of torque when starting and stopping the grinding head 100. In other words, because doctors can more accurately grasp the direction of the grinding head 100, they can more reasonably distribute the hand force to counteract the torque generated by the grinding head 100 during operation, which can reduce the accidental rotation of the handle due to excessive torque, thereby further improving the stability and safety of the entire surgical operation.

[0051] Figure 3 This is a schematic diagram of a second structure of a power grinding head for surgery provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the third structure of the power grinding head for surgery provided in this embodiment of the utility model; Figure 5 This is a schematic diagram of the fourth structure of the power grinding head for surgery provided in this embodiment of the utility model; Figure 6 This is a schematic diagram of the fifth structure of the power grinding head for surgery provided in this embodiment of the utility model; Figure 7 This is a sixth structural schematic diagram of a power grinding head for surgery provided in this embodiment of the present invention.

[0052] See Figures 1 to 7 In an optional embodiment of this utility model, the grinding head 100 includes one of the following: an oscillating saw 110, a sheathed grinding drill 120, a grinding drill 130, a milling cutter 140, a ring saw 150, and a straight saw 160. It is understood that the power grinding head encompasses various types such as the oscillating saw 110, the sheathed grinding drill 120, the grinding drill 130, the milling cutter 140, the ring saw 150, and the straight saw 160. This allows the power grinding head to adapt to different operational tasks and bone tissue processing requirements in orthopedic surgery. For example, in fracture reduction surgery, the oscillating saw 110 can be used to remove excess bone fragments or trim irregular bone fracture surfaces; the grinding drill 130 is suitable for finely grinding the bone surface, making it smoother and facilitating accurate alignment and healing of fracture ends. This functional versatility greatly expands the application range of the power grinding head in orthopedic surgery, meeting the needs of different surgical scenarios and individual patient differences.

[0053] See Figure 2In an optional embodiment of this utility model, when the grinding head 100 includes an oscillating saw 110, the protrusion direction of the first ridge structure 310 is opposite to the direction of the working end of the oscillating saw 110. It is understood that when the oscillating saw 110 is working, its saw blade usually performs a reciprocating oscillating motion. Secondly, when cutting bone tissue, a certain pressure needs to be applied to make the saw blade cut into the bone. At the same time, the doctor needs to control the oscillation direction and cutting path of the saw blade. For example, in amputation surgery, the doctor needs to use the oscillating saw 110 to gradually cut the bone tissue along the predetermined amputation plane. This reciprocating oscillation motion causes the oscillating saw 110 to generate a large reaction force during operation, and the cutting direction is relatively complex and requires precise control.

[0054] In this embodiment, the protrusion direction of the first ridge structure 310 is opposite to the working end direction of the oscillating saw 110. This allows the force applied by the doctor's hand to better counteract the reaction force generated by the oscillating saw 110 when it is in operation, as the doctor's grip on the first ridge structure 310 provides more stable resistance to the reaction force of the oscillating saw 110, thus enabling more precise control over the cutting depth and direction. Furthermore, the doctor's grip on the handle 300 effectively counteracts the backward reaction force of the oscillating saw 110 during cutting, preventing over-cutting or deviation from the predetermined cutting path and improving surgical precision.

[0055] Furthermore, because the doctor's grip on the handle 300 and the working reaction force of the oscillating saw 110 are mutually restrained, the position of the handle in the doctor's hand is less likely to shift or rotate during the reciprocating swing of the oscillating saw 110. This allows the doctor to focus more on controlling the working end of the oscillating saw 110 for precise cutting, reducing saw blade wobbling or loss of control caused by handle instability, and lowering the risk of accidental damage to surrounding tissues.

[0056] See Figure 3 In an optional embodiment of this utility model, when the grinding head 100 includes a sheathed grinding drill 120, the protrusion direction of the first ridge structure 310 is opposite to the direction of the working end of the sheathed grinding drill 120. It can be understood that when the sheathed grinding drill 120 is working, the drill inside it performs a rotating grinding action, while the outer sheath can protect the surrounding tissue from accidental damage by the drill. This requires that, during the operation, the doctor needs to precisely control the rotation direction, grinding depth, and position of action on the bone tissue of the sheathed grinding drill 120.

[0057] In this embodiment, the direction of the protrusion of the first ridge structure 310 is opposite to the direction of the working end of the sheath-mounted grinding drill 120. This allows the surgeon to better guide and control the working direction of the sheath-mounted grinding drill 120 when holding the handle 300. When grinding bone tissue close to important anatomical structures, the surgeon can more accurately position the working end of the sheath-mounted grinding drill 120 to the target area by sensing and applying force to the first ridge structure 310 with his hand, and stably control its movement in a confined space. This can prevent the sheath-mounted grinding drill 120 from deviating from the predetermined path due to uneven force, thereby reducing the risk of damage to surrounding blood vessels, nerves and other tissues, and improving the accuracy and safety of the surgery.

[0058] See Figure 4 In an optional embodiment of this utility model, when the grinding head 100 includes a grinding drill bit 130, the protrusion direction of the first ridge structure 310 is opposite to the direction of the working end of the grinding drill bit 130. It can be understood that the grinding drill bit 130 mainly rotates during operation, and the drill bit part at its front end needs to grind bone tissue by high-speed rotation. Therefore, during the operation, the doctor needs to apply a certain pressure to the grinding drill bit 130 to make it fully contact the bone tissue and achieve effective grinding, while also precisely controlling the rotation direction and grinding position of the grinding drill bit 130.

[0059] In this embodiment, the protrusion direction of the first ridge structure 310 is opposite to the working end direction of the drill bit 130. In this way, when the doctor holds the handle 300, the direction of the gripping force of the hand will form a certain antagonistic relationship with the direction of the torque generated by the rotation of the drill bit 130. This antagonism helps to increase the stability of the drill bit 130 during rotation and prevents it from unnecessary deviation or shaking on the bone tissue surface. A stable drill bit 130 can ensure the uniformity and accuracy of grinding, and can avoid excessive damage to the articular cartilage or the formation of an uneven grinding surface due to drill bit shaking, which is beneficial to the recovery of joint function after surgery.

[0060] participate Figure 5 In an optional embodiment of this utility model, when the grinding head 100 includes a milling cutter 140, the protrusion direction of the first ridge structure 310 is the same as the direction of the working end of the milling cutter 140. It can be understood that the working principle of the milling cutter 140 is to cut bone tissue by high-speed rotation during operation. Its cutting edge moves along a specific trajectory, which can perform relatively precise shaping of bone tissue. The rotation direction and cutting force direction of the milling cutter 140 are crucial for achieving precise bone tissue cutting and shaping. Doctors need to accurately control the movement direction and depth of the milling cutter 140 to ensure the surgical effect.

[0061] In this embodiment, the protrusion direction of the first ridge structure 310 is the same as the working end direction of the milling cutter 140. Thus, when the surgeon holds the handle 300, their hand follows the protrusion direction of the first ridge structure 310, allowing them to intuitively perceive the rotation and cutting direction of the working end of the milling cutter 140. This intuitive directional perception helps the surgeon better plan the movement path of the milling cutter 140 during operation. Especially during complex bone shaping procedures, the surgeon can more accurately guide the milling cutter 140 to the predetermined cutting position and cut in the expected direction, improving the accuracy and efficiency of the surgical procedure.

[0062] participate Figure 6 In an optional embodiment of this invention, when the grinding head 100 includes a ring saw 150, the protruding direction of the first ridge structure 310 is the same as the direction of the working end of the ring saw 150. It is understood that the ring saw 150 works by rotating and advancing along its axial direction to cut bone tissue, forming a ring-shaped cutting surface. It is commonly used to obtain bone tissue samples, such as in bone tumor biopsy surgery, or in some orthopedic surgeries for procedures like enlarging bone cavities and forming bone canals. Therefore, the ring saw 150 needs to maintain stable rotation and advancing motion during operation to ensure the accuracy and integrity of the cut, while avoiding unnecessary damage to surrounding tissues.

[0063] In this embodiment, the direction of the protrusion of the first ridge structure 310 is the same as the direction of the working end of the ring saw 150. This allows the doctor to naturally perceive the rotation and advance direction of the working end of the ring saw 150 along the direction of the ridge structure when holding the handle 300. This consistency in direction helps the doctor to control the movement of the ring saw 150 more smoothly during operation. It allows the doctor to more intuitively and accurately position the ring saw 150 in the target bone tissue area and rotate and advance it along the predetermined direction in order to successfully obtain bone tissue samples of appropriate size and shape, and reduce sample collection failure or damage to surrounding normal tissues caused by misjudging the direction.

[0064] participate Figure 7 In an optional embodiment of this utility model, when the grinding head 100 includes a straight saw 160, the protrusion direction of the first ridge structure 310 is the same as the direction of the working end of the straight saw 160. It can be understood that the working principle of the straight saw 160 is mainly to perform linear reciprocating motion, cutting or dividing bone tissue by the back and forth cutting of the saw teeth. Therefore, the operation of the straight saw 160 requires precise control of the cutting direction and depth to ensure accurate cutting of bone tissue, while avoiding damage to surrounding important structures such as blood vessels and nerves.

[0065] In this embodiment, the protrusion direction of the first ridge structure 310 is the same as the working end direction of the straight saw 160. This allows the doctor to directly feel the same directional guidance as the working end of the straight saw 160 when holding the handle 300, following the direction of the ridge structure. This makes it easier for the doctor to align the straight saw 160 with the predetermined cutting line before cutting, and to more intuitively grasp the movement direction of the straight saw 160 during the cutting process, thereby improving the accuracy of the operation.

[0066] Continue reading Figure 4 In an optional embodiment of this utility model, when the grinding head 100 includes a grinding drill bit 130, the tool holder 200 includes a first connecting part 210 and a second connecting part 220 connected to each other. The first connecting part 210 and the second connecting part 220 are arranged at an included angle to each other, and the opening of the included angle faces the same direction as the working end of the grinding drill bit 130. The size of the included angle can be adaptively designed according to actual needs. The end of the first connecting part 210 away from the second connecting part 220 is connected to the tool holder 300, and the end of the second connecting part 220 away from the first connecting part 210 is connected to the grinding drill bit 130.

[0067] Understandably, surgery often requires handling bone tissue from different angles. The angled arrangement of the first connecting portion 210 and the second connecting portion 220 provides greater operational freedom, allowing surgeons to change the direction of the drill bit 130 without significantly adjusting their hand position, thus reducing surgical time and the risk of tissue damage. In the power grinding head provided in this embodiment, the first connecting portion 210 and the second connecting portion 220 are angled together, with the angle opening facing the same direction as the working end of the drill bit 130. However, the protrusion direction of the first ridge structure 310 is opposite to the working end direction of the drill bit 130. This allows the surgeon to clearly understand the relationship between their applied force direction and the angle opening direction through their perception of the first ridge structure 310 when holding the handle 300. This enables the surgeon to precisely control the movement trajectory of the drill bit 130 in space, resulting in more accurate operation.

[0068] Continue reading Figure 1 In an optional embodiment of this utility model, the outer surface of the scalpel handle 300 is provided with at least one second ridge structure 320, which is arranged parallel to and spaced apart from the first ridge structure 310. It is understood that the second ridge structure 320 increases the surface roughness of the scalpel handle 300. According to the relevant principles of friction (the rougher the contact surface, the greater the friction), when the doctor holds the scalpel handle 300, the friction between the hand and the scalpel handle 300 increases significantly. During surgery, especially when the grinding head 100 rotates at high speed or encounters significant resistance, the strong friction can effectively prevent the scalpel handle 300 from slipping from the doctor's hand, ensuring the stability and safety of the surgical operation.

[0069] Continue reading Figure 1In an optional embodiment of the present invention, when two second ridge structures 320 are provided, a first gripping portion 330 is defined between the two second ridge structures 320, and a second gripping portion 340 is defined between each second ridge structure 320 and the first ridge structure 310, wherein the area of ​​the second gripping portion 340 is larger than the area of ​​the first gripping portion 330.

[0070] Understandably, in actual surgical procedures, the way the handle 300 is held plays a crucial role in the precision and safety of the surgery. When the surgeon holds the power grinding head, the first grip portion 330 usually naturally fits tightly against the palm, providing a relatively stable support base. Secondly, due to the relatively long length of the fingers, especially the index, middle, and ring fingers, this longer physiological structure allows the larger second grip portion 340 to achieve more thorough and precise contact. From an ergonomic perspective, the large-area contact between the fingers and the handle 300 is not a simple physical contact, but involves multiple subtle physiological and mechanical principles. The surface of the fingers is richly covered with tactile receptors. When in full contact with the second grip portion 340, these receptors can keenly sense subtle changes in the handle 300, such as vibration and pressure distribution, thereby enabling the surgeon to more precisely control the operation of the grinding head 100.

[0071] Furthermore, during surgical procedures, the fingers are the primary force-generating part of the hand. The coordinated movement of multiple joints allows for precise and flexible force control. The larger second grip 340 provides more force-generating points for the multiple joints of the fingers. Each joint can apply force in its own comfortable and stable position, forming a multi-point force-generating system. This multi-point force-generating method not only effectively distributes the force applied by the hand to the handle 300, avoiding instability caused by excessive local pressure, but also makes the transmission of force more even and efficient. At the same time, because multiple joints are involved in the force-generating process, the fatigue distribution of the hand muscles is more even, maintaining relatively stable grip strength and precision during prolonged surgical procedures. This greatly improves the stability and reliability of the grip, providing a solid guarantee for the smooth progress of the surgery.

[0072] Continue reading Figure 1In an optional embodiment of this invention, the first grip portion 330 has anti-slip texture 350 formed on it; in another optional embodiment, the second grip portion 340 has anti-slip texture 350 formed on it. It is understood that when a doctor grips the scalpel handle 300, the anti-slip texture 350 significantly increases the friction between the hand and the handle 300. During surgery, especially when the grinding head 100 rotates at high speed or requires significant force, the anti-slip texture 350 effectively prevents the hand from sliding on the handle 300, ensuring the doctor can stably grip the handle 300, accurately control the direction and force of the grinding head 100's movement, reduce operational errors caused by unstable grip, and improve the safety and accuracy of the surgery.

[0073] Continue reading Figure 1 In an optional embodiment of this utility model, multiple anti-slip textures 350 are provided, and the multiple anti-slip textures 350 are arranged parallel to each other along the length direction of the handle 300. It is understood that during surgical operations, the force applied by the surgeon's hand is not completely uniform, especially during prolonged operations or when dealing with complex surgical situations, the point of force application and the force will change. In this embodiment, the uniformly distributed anti-slip textures 350 can provide stable friction at each contact point, which can effectively prevent slippage caused by insufficient local friction. In addition, the uniformly distributed anti-slip textures 350 can ensure that the friction between the hand and the handle 300 is always kept at a reliable level, enabling the surgeon to operate the grinding head 100 more accurately, reducing operational errors caused by unstable grip, and improving the precision and safety of the surgery.

[0074] In an optional embodiment of this utility model, the scalpel 200 and the scalpel handle 300 are detachably connected. It is understood that, from a practical usage perspective, different surgical procedures often have specific and diverse requirements for the grinding head 100. In this embodiment, based on the detachable connection between the scalpel 200 and the scalpel handle 300, multiple scalpels 200 with different grinding heads 100 can be equipped on the scalpel handle 300. Thus, during use, the corresponding scalpel 200 can be quickly disassembled and replaced according to different usage needs. This design plays a crucial role in reducing the operating cost of the power grinding head. On the one hand, since it is not necessary to purchase a power grinding head equipped with a complete grinding head 100 separately for every possible surgical need, medical institutions can avoid the waste of funds caused by idle equipment, significantly reducing expenditures on surgical instrument procurement. On the other hand, when the scalpel 200 or the grinding head 100 experiences wear or damage due to long-term use, only the corresponding parts need to be replaced, without replacing the entire power grinding head. This significantly reduces subsequent maintenance and parts replacement costs, extends the service life of the entire power grinding head system, and saves medical institutions a significant amount of money in the long run.

[0075] From a manufacturing cost perspective, the detachable design allows manufacturers to adopt a modular production approach, enabling the separate production of standardized tool holders 300 and diverse tool shanks 200 and grinding head 100 components. Compared to producing multiple non-detachable integral power grinding heads with different functions, this production model can achieve economies of scale and reduce production costs.

[0076] A second aspect of this utility model provides a surgical power system, which includes the power grinding head described in any of the foregoing embodiments. It is understood that the surgical power system provided by this utility model, since it includes the power grinding head described in any of the foregoing embodiments, also has the technical effects of the power grinding head described in any of the foregoing embodiments. For specific technical effects, please refer to the foregoing description, which will not be repeated here.

[0077] It should be noted that the technical solutions in the various embodiments of this utility model can be combined with each other, but the basis for such combination is that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist, that is, it is not within the protection scope of this utility model.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A powered grinding head for surgical use, characterized in that, It includes a grinding head (100), a tool holder (200) and a tool shank (300). The grinding head (100) is located at one end of the tool holder (200), and the tool shank (300) is located at the other end of the tool holder (200). The outer side of the tool shank (300) is provided with a first ridge structure (310), and the protrusion direction of the first ridge structure (310) corresponds to the direction of the working end of the grinding head (100).

2. The power grinding head for surgery according to claim 1, characterized in that, The grinding head (100) includes one of a oscillating saw (110), a sheathed grinding drill (120), a grinding drill (130), a milling cutter (140), a ring saw (150), and a straight saw (160).

3. The power grinding head for surgery according to claim 2, characterized in that, When the grinding head (100) includes the oscillating saw (110), the protrusion direction of the first ridge structure (310) is opposite to the direction of the working end of the oscillating saw (110); When the grinding head (100) includes the sheathed grinding drill bit (120), the protrusion direction of the first ridge structure (310) is opposite to the direction of the working end of the sheathed grinding drill bit (120); When the grinding head (100) includes the grinding drill bit (130), the protrusion direction of the first ridge structure (310) is opposite to the direction of the working end of the grinding drill bit (130); When the grinding head (100) includes the milling cutter (140), the protrusion direction of the first ridge structure (310) is the same as the direction of the working end of the milling cutter (140); When the grinding head (100) includes the ring saw (150), the protrusion direction of the first ridge structure (310) is the same as the direction of the working end of the ring saw (150); When the grinding head (100) includes the straight saw (160), the protrusion direction of the first ridge structure (310) is the same as the direction of the working end of the straight saw (160).

4. The power grinding head for surgery according to claim 3, characterized in that, When the grinding head (100) includes the grinding drill bit (130), the tool holder (200) includes a first connecting part (210) and a second connecting part (220) connected to each other. The first connecting part (210) and the second connecting part (220) are arranged at an included angle to each other, and the opening of the included angle faces the same direction as the working end of the grinding drill bit (130). The end of the first connecting part (210) away from the second connecting part (220) is connected to the tool holder (300), and the end of the second connecting part (220) away from the first connecting part (210) is connected to the grinding drill bit (130).

5. The power grinding head for surgery according to claim 1, characterized in that, The outer side of the handle (300) is provided with at least one second ridge structure (320), and the second ridge structure (320) and the first ridge structure (310) are arranged parallel to each other along the circumference of the handle (300).

6. The powered grinding head for surgery according to claim 5, characterized in that, When two second ridge structures (320) are provided, a first grip portion (330) is defined between the two second ridge structures (320), and a second grip portion (340) is defined between each second ridge structure (320) and the first ridge structure (310), wherein the area of ​​the second grip portion (340) is larger than the area of ​​the first grip portion (330).

7. The power grinding head for surgery according to claim 6, characterized in that, The first grip portion (330) has anti-slip texture (350) formed thereon, and / or the second grip portion (340) has anti-slip texture (350) formed thereon.

8. The powered grinding head for surgery according to claim 7, characterized in that, The anti-slip texture (350) is provided in multiple ways, and the multiple anti-slip textures (350) are arranged parallel to each other along the length direction of the handle (300).

9. The power grinding head for surgery according to any one of claims 1 to 8, characterized in that, The tool holder (200) and the tool shank (300) are detachably connected.

10. A surgical power system, characterized in that, Includes the powered grinding head for surgery as described in any one of claims 1 to 9.

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